Installation guide

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Cisco uBR7100 Series Universal Broadband Router Software Configuration Guide
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Chapter 3 Configuring the Cisco Cable Interface
Configuring Cable Modulation Profiles
Note You can use a single cable qos-profile command to configure multiple parameters for the selected QoS
profile number.
Tip Use the no cable qos-profile groupnum command to remove an optional QoS profile, or in the case of
QoS profiles 1 and 2, to return the parameters to their default values.
Verifying QoS Profiles
To determine if a QoS profile has been created, and to see how it is configured, enter the
show cable qos profile command:
CMTS01# show cable qos profile
Service Prio Max Guarantee Max Max tx TOS TOS Create B IP
class upstream upstream downstream burst mask value by priv prec
bandwidth bandwidth bandwidth enab enab
1 0 0 0 0 0 0x0 0x0 cmts no no
2 0 64000 0 1000000 0 0x0 0x0 cmts no no
3 0 3120 31200 0 0 0x0 0x0 cmts yes
no
4 7 87200 87200 0 0 0x0 0x0 cmts yes
yes
5 0 256000 128000 1000000 0
0x0 0x0 cm no yes
Tip If you are having difficulty with verification, make sure you typed the correct QoS profile number and
profile elements when you entered the command in global configuration mode.
Note Cable modems that register continuously and fail consume more resources than cable interfaces that stay
registered. Assign customers who do not pay for service to QoS profile 3.
CMTS01(config)# cable qos-profile
groupnum max-upstream rate
Set the maximum upstream data rate in kbps that a
cable modem using this QoS profile will send. Valid
values are from 0 to 100000 kbps. Default = 0 (no
upstream rate limit.)
CMTS01(config)# cable qos-profile
groupnum max-downstream rate
Set the maximum downstream data rate in kbps that
a cable modem using this QoS profile will receive.
Valid values are from 0 to 100000 kbps. Default = 0
(no downstream rate limit.)
CMTS01(config)# cable qos-profile
groupnum priority number
Assign a relative priority number for the upstream
traffic associated with this QoS profile. Valid values
are from 0 to 7, with 7 being the highest priority.
Default = 0.
CMTS01(config)# cable qos-profile
groupnum tos-overwrite value
Overwrite the ToS byte in the IP datagrams received
on the upstream before forwarding them
downstream. Set the mask bits to a hexadecimal
value to help the CMTS identify datagrams for QoS
on the backbone.
Command Purpose